Solve the Polynomial Equation $$3 x ^ { 4 } + 23 x ^ { 3 } + 89 x ^ { 2 } + 167 x + 78 = 0$$

question 11

Multiple Choice

Solve the polynomial equation. In order to obtain the first root, use synthetic division to test the possible rational
roots.
- $$3 x ^ { 4 } + 23 x ^ { 3 } + 89 x ^ { 2 } + 167 x + 78 = 0$$

• A) \(\left\{ - 3 , - \frac { 2 } { 3 } , - 2 + 3 i , - 2 - 3 i \right\}\)
• B) \(\left\{ 3 , + \frac { 2 } { 3 } , - 3 + 2 i , - 3 - 2 i \right\}\)
• C) \(\left\{ - 3 , + \frac { 2 } { 3 } , - 3 + 2 i , - 3 - 2 i \right\}\)
• D) \(\left\{ 3 , - \frac { 2 } { 3 } , - 2 + 3 i , - 2 - 3 i \right\}\)

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Definitions:

Interrater Reliability

Refers to the degree of agreement among independent observers or raters evaluating the same phenomenon.

Interrater Reliability

The degree of agreement among raters, demonstrating how consistently different observers assess the same phenomenon.

Test-retest Reliability

The consistency of a measure assessed by testing the same individuals at two different points in time.

Item-total Correlation

The statistical relationship between a single test item and the total score on the test, used to assess the item's quality.